diff --git a/.gitmodules b/.gitmodules
index 156f4206..fbcf7db2 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -244,3 +244,6 @@
 	url = https://github.com/victor-gp/cmd-help-sublime-syntax.git
 	branch = main
 	shallow = true
+[submodule "assets/syntaxes/02_Extra/TodoTxt"]
+	path = assets/syntaxes/02_Extra/TodoTxt
+	url = https://github.com/dertuxmalwieder/SublimeTodoTxt
diff --git a/assets/syntaxes/02_Extra/TodoTxt b/assets/syntaxes/02_Extra/TodoTxt
new file mode 160000
index 00000000..f5f0a6c4
--- /dev/null
+++ b/assets/syntaxes/02_Extra/TodoTxt
@@ -0,0 +1 @@
+Subproject commit f5f0a6c47f8948193f5e185576d49379a1438077